issue-6028: resolves 6028 - return (False, ".") instead of (False, '')
Since 4.8, repo[] no longer takes an empty string, so we update to a valid with
similar semantic.
This value is strange and we should probably use an actual node ID here,
however, this is an independent issue.
# name space package to host third party extensions
from __future__ import absolute_import
import pkgutil
__path__ = pkgutil.extend_path(__path__, __name__)